And like I said, good con! but.
I think I've said quite enough that I don't want people messing with my hair. If I'm okay with you touching my hair, you already know it. If you're not sure, ask. Greeting me by randomly tugging at my hair or rubbing my head makes me want to punch you in the face. You do not want me to want to punch you in the face, I imagine.
Also think I've said quite enough that grabbing me from behind if I don't know you're there is a really bad idea. Someone almost got thrown Friday. It takes effort to *not* throw you when you do that. If you do not want to end up flat on your back and in serious pain, it is a good idea to not play the guess-who game with me, especially in a crowded overstimulating place. If you're coming up behind me, say something and/or gently touch my shoulder to let me know you're there; nine times out of ten, this will result in a big hug for you and no urge to kill.
Part of me says "Eee, yeah, you should've posted this to remind people before the con," and the other part of me says "Um, hello! You've posted about this enough that no one can claim they're unaware of it. Telling people a few times ought to be enough. You shouldn't need to wear a sign."
On a yay, some people are getting the message note: It seems that I have successfully gotten people to remember to ask if they can photograph me instead of assuming. And everyone I knew took my "no, but thank you for asking" gracefully. (One person did not, but it wasn't anyone I know.)
This makes con stuff sound negative, and it totally wasn't. Awesome con. With, as a bonus, lots of cuddliness from friends old and new, and rarely five minutes without hugs from awesome people. This was a very happy snuggly con for me! But those few incidents did make me twitchy at the time, so I am posting this "care and feeding" reminder.